emancipation vs tyranny

emancipation

noun
  • The act of setting free from the power of another, as from slavery, subjection, dependence, or controlling influence. 

  • The state of being thus set free; liberation (used, for example, of slaves from bondage, of a person from prejudices, of the mind from superstition, of a nation from tyranny or subjugation). 

tyranny

noun
  • A government in which a single ruler (a tyrant) has absolute power; this system of government. 

  • The office or jurisdiction of an absolute ruler. 

  • Extreme severity or rigour. 

  • Absolute power, or its use. 

  • A system of government in which power is exercised on behalf of the ruler or ruling class, without regard to the wishes of the governed. 

How often have the words emancipation and tyranny occurred in a corpus of books? (source: Google Ngram Viewer )